Notch filter feedback controlled chaos in buck converter |
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| Authors: | Lu Wei-Guo Zhou Luo-Wei Luo Quan-Ming |
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| Affiliation: | Key Laboratory of High Voltage Engineering and Electrical New Technology of Ministry of Education, College of Electrical Engineering, Chongqing University, Chongqing 400044, China; |
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| Abstract: | A method of controlling chaos in the voltage-mode buck converter is presented by using an improved notch filterfeedback control in this paper. The proposed control part comprises a notch filter and a low-pass filter. The discrepancybetween the outputs of the two filters is introduced into the control prototype of the power converter. In this way, thesystem period-1 solution is kept unchanged. The harmonic balance method is applied to analysing the variation law ofthe system bifurcation point, and then the stable range of the feedback gain is ascertained. The results of simulationand experiment are also given finally. |
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| Keywords: | chaos control of chaos buck converter notch filter |
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